Means for staying sectional walls.



F. M. JACOBS.

MEANS FOR STAYING SEGTIONAL WALLS.

APPLIOATION FILED mmia, 191s.

Patented Apr. 14, 1914..

5 SHEETS-SHEET 1.

Q5 72 men to 7' F. M. iAooBs.

MEANS FOR STAYING SBOTIONAL WALLS.

APPLIOATION FILED JUN E5, 1913.

6 SHEBTS-SHEET 2.

1 ,093,428.,- Patented Apr. 14, 1914.

O O 0 O 0' 101.

P. M. J AGOBS.

MEANS FOR STAYING SEOTIONAL WgLLS,

I APPLICATION FILEDJUNE5,1913. 1,093,428, Patented Apr. 14, 1914.

6 SHEETS-SHEET 3.

/ flttcarneyp F. M. JACOBS. a MEANS FOB. STAYING SECTIONAL WALLS.

- v APPLICATION FILED JUNE 5, 1913. l909.3,&Q8o Y 5 SHEETS-SHEET 4.

Patented Apr. 14, 1914.

P. M. J AOOBS.

MEANS FOR STAYING SEGTIONAL WALLS.

APPLICATION FILED JUNE 5, 1913.

' Patented Apr. 14, 1914.

5 SHEETSr-SHEET 5.

dim/672301" J 777.

. M'tneppep waf/Mw/ FRANK M. anooss, or TOZPEKA, KANSAS MEANS FOR STAYING SECTIONAL WALLS Specification of Letters Patent.

Patented fi pr. 14 1914.

Application filed June 5, 1913. Serial No. 771,914.

To all whom it may concern Be it known that I, FRANK M. Jaoons, a citizen of the United States, and resident of Topeka, in the county of Shawnee and State of Kansas, have invented certain new and useful Improvements in Means for Staying Sectional \V'alls, of which the following is-a description, reference being had to the accompanying drawings, which form a part of my specification. I p p My invention relates to means whereby adjacently placed walls, composed of a number of units or sections, so arranged as to provide an intervening chamber or chambers adapted to receive a fluid or un der pressure, will be properly supported 0r stayed.

My invention is more especially adapted for use in connection with sectional furnaces or sectional combustion chambers of steam boilers wherein the furnaces or combustion chambers are so arranged as to provide an intermediate water chamber or leg.

The object of the invention is the provision of means whereby the necessity of employing stay members or sheets secured in place by means of the usual rivets, which are exposed to the flame or hot gases, will be entirely obviated.

The invention is more particularly adapted for use in connection-with steam boilers provided with sectional furnaces or sectional combustion chambers arranged in pairs and parallel with each other so as to provide an intermediate or inside water leg. It is evident that with a steam boiler so constructed, it is impossible to rivet a one-piece stay-sheet in the sectional inside water-leg so as to present the rivets within the Water-leg where they will not be exposed to the flame or hot gases of the furnace and combustion chamber portions. It is to overcome this serious objection, and at the same time provide staying means possessing a flexibility not attained by the use of a one-piece stay sheet, as well as a number of other advantages, that I have devised the means hereinafter to be described.

In the drawings :Figi1re 1. is a longitudinal sectional plan view of the firebox end of a locomotive type of' boiler, shown equipped with two JacObS-Shupert sectional fireboxes, and two Jacobs self-supporting sectional combustion chambers; the adjacent wall of the furnaces-and combustion chambers being shown secured or stayed tog'ether by one form of my improved means; I

the view being taken on the line 0-0 of Figs. 2 and 3; thearrows indicating the direction in which the section is observed. Fig. 2 is a transverse sectional view of the boiler illustrated in Fig. 1 and taken on the line LI -a looking in the direction of the arrows. Fig. 3 is a transverse sectional view taken through the combustion chambers on the line bb of Fig. 1 and looking inlthe direction of the arrows. Fig. 4 is a plan view .of one form of my improved staying means;

being the construction employed in connectlon with the sectional furnaces and sectional combustion chambers illustrated in nection with my improved meansf Fig. 8

is a longitudinalsectional plan view of a portion of an inside water-leg. of a secti'onal firebox, showing a modified form of my invention and its method of application. Fig. 9 is, a side elevation of the modified form of staying means shown in Fig. 8. Fig. 10 is an end elevation of Fig. 7 is a perspective view of a.

the same. Fig. 11 is a sectional plan view of a portion of an inside water-leg of a firebox; illustrating another modified form of my invention. Fig. 12 is a side elevation oftl'ie modified form of staving means shown in Fig. 11. Fig. 13 is an end elevation of the same. i

I have illustra'ted my invention'in connection with sectional furnaces and combustion chambers of the locomotive type of steam boiler, wherein the boiler is shown provided with two furnaces and two combustion chambers arranged with their longitudinal axes parallel to each other andseparated by an intermediateor inside water-leg.

The exemplification of my invention illustrates its application to a locomotive type of boiler equipped with two J acobs-Shupert sectional fireboxes and two Jacobs self-supporting sectional combustion chambers at present well known in the art, the fireboxes and combustion chambers being arranged parallel with each other, and longitudinally of the boiler as very clearly shown in Figs. '1, 2, and 3 of the drawings; thefirebox end of the boiler being shown provided with an entered into.

outside shell composed of'different units or sections, while the combustion chamber end of the boiler is shown usual outside boiler shell. As the manner of forming the furnace portions and combustion chamber portions, as well as the outer boiler-shell, and the method of securing the sections together, form no part ofmy invention, adetailed description of this portion of the boiler, as illustrated in the drawings, need not; be

My improved staying means comprises a stay-sheet or member 14 provided with a plurality of projections or heads 15, more clearly illustrated in Fig. 7, and provided with the intermediate cut-out or water-circulating portions as shown at 16, see Fig. 7. These stay-sheets 14 may be of any length to correspond withthe length or height of the walls intended to be secured together; the stay-sheet or strip 14: being intended 0 be riveted between the flanged portions of adjacently placed sections 17, which constitute the walls to be supported or stayed.

In the exemplification, the units or sections 17 constitute the wall of the two furnaces A, A, and the walls of two combustion chambersB, B; and it is between the adjacent parallelly arranged walls of the furnace portion and combustion chamber portion, that my invention is intended to be used. The stay sheets or' members 1a are so secured between the adjacent sections that the heads 15 of the members 14: secured to opposing walls will be presented toward and directly opposite each other, as very clearly shown in Fig. 1. The oppositely disposed stay-sheets 1 1 are linked or connected together by the stay members or staylinks 18. The preferred form of stay member or link is shown in Fig. 4, and is provided with the oppositely disposed recesses 19, 19, of a contour similar to the cross section of the heads 15 of the staysheet 14; the outer end of recesses 19 being restri ted to receive the connecting or neck portions 15 of the staysheet and thus prevent the lateral withdrawal of head portions 15. The portion of the connecting member or link 18 intermediate of the oppositely disposed recesses 19, 19, is made to terminate in a depending spacing web or plate portion 20, which is preferably of the same length as the distance or space between thesuccessive heads 15 of the stay sheet or member 14-. The function of the web 'or plate portion 20 of the connecting links or members 18 is to separate or space the successive connecting members or links 18 at'distances corresponding with the distance between the successiveheads 15, so as to provide for the circulation of the water. The ends of the recesses 19, 19, namely the ends on the sides of the connecting members or links 18 on which th spacprovided with the ing portion 20 is formed, are preferably tapered as veryclearly shown in Figs. 5 and 6 at 19', so as to guide the heads 15 of the stay sheets 14into the recesses 19 and thus insure the proper seating of the connecting member 18.

It will be understood, of course, that as many connecting members or links 18 are employed as there are heads on the stay sheets or members 14:; and in practice where my invention is used in connection with a boiler of the gclass illustrated in the drawings, with the walls of the furnace portions constituting the inside water-leg of the boiler, the connecting links or members 18 are placed so as to present the spacing portions 20 downwardly, as very clearly shown in Fig. 9., so that the spacing portion 20 of the bottom connecting member or link 18 will rest upon the mud ring 21; while the spacing portion or plate 20 of the different links or members above will rest upon the link immediately beneath, as very clearly shown in Fig. 2. The uppermost connecting member or link 18 may be heldin place against vertical displacement in any suitable manner, as for example by the keysQZ which are shown inserted in a continuation of stay member or sheet'lfl at a point above the uppermost member or link 18.

In the intermediate or inside water-leg between the adjacently placed combustion chambers, as illustrated in Fig. 3, I show the bottom connecting member or link 18 held in place by the keys 23; the connecting link or member 18 in this instance need not be provided with the spacing portion or plate 20. With the top and bottom links or members 18 thus securely fastened or held in place, it is evident that the intermediate links or connecting members will also be held in position by means of the respective spacing portions or plates 20.

As very clearly shown in. Figs. 2 and 3, I prefer to provlde a small clearance between the keys or securing members 22 and the topmost link or connecting member 18, so

as to permit the opposite walls of the waterleg to have independent vertical expansion.

In Figs. 8, 9, and 10, I show a modified form of connecting member or link 18*, wherein the connecting member or link is designed to engage with or receive but one side of a pair of the adjacent stay-sheet heads, and the connecting member or link is adaptconstruction the connecting members or links 18 are provided with a recess 19 at each end thereof; the recessed ends being adapted to extend or take about. the edges'of the head ed to extend longitudinally of the water-leg as very clearly illustrated in Fig. 8. In this portions of the stay-members or sheets at.

ranged at opposite sides of the different sections or units 17, as clearlyindicated. in

Fig. The connecting members, or links 18 are preferably provided with the two of the succeeding connecting member or link immediately beneath, whereby a water circulating space between the different connecting members will'be maintained.

Figs. 11, 12, and 13, show another modified form ofmy invention, wherein the stay sheet or member 14L is provided, with a head 15",, the sides or ends of the head being provided with the projecting lipportions 15" presented or curved backwardly as very clearly shown in Fig. 11. In these figures I show the connecting member or link adapted to engage with but one side of a pair of oppositely disposed stay sheets, so that two connecting members or links are used for each pair of stay sheets, as very clearly shown in Fig. 11. The staying members or links 18 are provided with curved lips 19 presented toward each other so as to interlock with the lips 15 of the oppositely dis-. posed head of the stay sheets or members 14:. Preferably at a point intermediate of its sides, the connecting member or link 1S is provided with the depending spacing portion or plate 20, which is adapted to engage with the succeeding connecting mem her or link immediately beneath, whereby a proper water circulating space between the different connecting members or links will be maintained; it being understood, of course, that the spacing portion or plate 20, corresponds in length with the distance between the respective heads on the stay sheets or members 14 thus been found in practice, that the heating surface of the firebox and combustion chamber of a boiler is approximately eight times more eflicient than that of the dues of the boiler, so that any increase in the firebox or combustion chamber heating surface would result in a more eflicient boiler. it is evident, therefore, that the firebox and combustion chamber heating surface of a locomotive boiler may be greatly increased by dividing the firebox and; combustion chamber lengitudinallyin the manner illustrated in Figs. 1, 2, and 3, thereby providing an inside or intermediate water-leg, e'x-- posed to the fire and hot gases on both sides; the water-leg being situated between the two furnace portions and the two combustion chambers, as very clearly shown. Where these water-legs are formed by walls of the usual stay bolts,

construction com- "monly 'usedin building fireboxes, the cost of outweigh the benefits that might be derived, because of the multiplication of the stay bolt troubles and the bad effect of expansion and contraction; such a construction having other disadvantages inherent in the stay bolt principles of firebox construction. These troubles and disadvantages, however, are not encountered in the 'Jacobs-Shupert sectional principle of firebox nor in the Jacobs self-supporting sectional. combustion chamber; however, with these constructions wherein the flanges of the sections of both of the walls extend inwardly, that is into the water chamber or space, it has been found practically impossible to rivet the stay sheets because of the lack of space between the flanges of the sections, thereby precluding the insertion of any device suitable to drive the rivets, because the principle involved in the sectional constructions referred to suggest the presentation of the flanges of the sections into the water-leg in order that no rivets will be exposed to the fire.cr hot gases. It has, therefore, become necessary to devise some means, as herein described, whereby the stay sheets could be riveted between the furnace sections and combustion chamber sections before the furnace and combustion chambers were connected to each other. I

The herein described invention also makes it possible to use sectional heads for combustion chambers which will be properly stayed and at the same time be entirely free of stay bolts; further, making it possible to' employ a separate sectional combustion chamber for'each furnace, so that each furnace will be independent of the other, and the draft, by reason of the opening of the door of the one, will not be interfered with through the opening of the fire-door of the other furnace.

It is apparent, therefore, that my invention is also well adapted for use in connection with large marine boilers wherein it is necessary to equip the same wit-ha plurality of furnaces at each end, as otherwise the grate area would be too large,'making it diflicult to support the crown of the furnace, and also losing the benefit of the added heating surface resulting from the intern'iediate or inside water-leg construction.

The invention has been shown embodied in a locomotive type of steam boiler of the sectional furnace and sectional combustion chamber design, but it will be understood that the invention may be employed in a great variety of structures, such as tanks, or receptacles of any kind which are subject to internal; pressure; or to any type of boiler having walls of different sections or units, which walls form a chamber or chambers and are subjectto internal pressure.

I have shown and described what l believe to be the simplest and best forms of my invention, but the same may be modified in certain respects without, however, departing from the spirit of my invention, and I do not wish to be understood, therefore. as lim- ,iting myself to the exact constructions shown and described.

W hat I claim is 1. Means of the class described, comprising members adapted to be secured to the oppos ing walls tol stayed and having out "ardly presented portions, a second member adapted to be slipped onto the outwardly present-- ed portions of the first mentioned and opposing members, both sets of members being l5 provided with interlocking surfaces whereby lateral movement is prevented, and means whereby a'spaced relation between a multiple of the second members is maintained.

2. Means of the class described, comprisin'g means adapted to be secured to the opposing walls to be stayed, said means being provided with protruding portions, and linking means adapted to engage with the protruding portions of the first mentioned 5 means so asto prevent lateral movement.

3. Means of the class described, con'iprising stay-sheet members adapted to be secured to the opposing walls to be stayed, said staysheet members being provided with protrud- 30 ing portions, and means adapted to engage with the protruding portions of oppositely disposed stay-sheet members whereby transverse nmvemcnt is prevented, said last mentioned means being so formed as to maintain the proper relative position thereof.

4. Means of the class described, comprising stay-sheet members adapted to be secured to the opposing walls to he stayed, said staysheet men'ibers being provided with protruding portions, and linking means provided wit h surfaces adapted to engage with the protruding portions of oppositely disposed stay-sheet members to prevent lateral move-. ment and with surfaces whereby a proper.

spaced relationwill be maintained between the stay-sheet engaging portions of said means.

5, Means of the class described, comprising a stay-sheet member provided with water circnlatirg portions and with protruding head portions, and-a link member provided with surfaces adapted to engage with the Qopies of chi. patent may. be obtained for head portions of the stay-sheet member and walls to be stayed, said means being pro-,

vided with protruding portions, and means provided with sockets adapted to receive the protruding portions of the first mentioned means whereby lateral movement is prevented, the means being formed so as to provide circulating spaces.

7. Means of the class described, comprising stay-sheet members adapted to be secured to opposing walls so as to have the free edges of the opposing members presented toward each other, and link members provided with surfaces adapted to engage with the free edges. of the stay-sheet members and prevent lateral displacen'ient, said link members being arranged to become disengaged by movement lengthwiseof the stay-sheet members.

8. In a boiler provided with an inside water-leg composed of sectional side Walls, staysheet members adapted to be secured intermediate of the respective sections of the opposing walls so as to provide oppositely presented portions, means adapted to interlock with the oppositely presented. portions of the staysheet members so as to prevent lateral displacement, and means for securing said first mentioned means in proper relative position against vertical displacement.

9. In a boiler provided with an inside water-leg composed of sectional side Walls, stay-sheet members adapted to be secured intermediate of the respective sections of the opposing walls, said members being provided with alternating Water-circulating passages and protruding head portions arranged lengthwise ot one edge of said members, and means adapted to be arranged intermediate of the opposing Walls of the water-leg and engage said protruding headportions so as to maintain the relative position laterally oi the opposing walls, said means being formed so as to provide c1rcnlating spaces. I Y

FRANK M. JACOBS.

Witnesses R. S NORTI-IRUP, F ER'NE BUNKER.

five cents each, by addressing the Commissioner of Patents, "Washington, 1 C. 

